Tu Van Thiet Ke Va XD Hoang Son Joint Stock Company Address: Khoi 13, Trung Do Ward, Vinh City, Nghe An Province Enterprise code: 2900694763 Phone: 02158833863 Representative: Cao Dinh Liem Trung Do Ward, Vinh City, Nghe An ProvinceFounding date: 29 - 8 - 2005